Chrissy Mauck, of SF49ers.com, reports San Francisco 49ers RB DeShaun Foster said he is excited to play a significant role in Week 15 if RB Frank Gore (ankle) is not able to play. "I'm excited to go," said Foster. "I have to get in there and carry the load like Frank does. He's a good back, so our offense kind of runs around him. I just want to keep it going and run hard."